|Rank|Name|Nationality|1,62|1,67|1,72|1,75|Notes|
|---|---|---|---|---|---|---|---|
|1|Dior Delophont|France|–|o|o|o|q|
|1|Ligia Grozav|Romania|–|o|o|o|q|
|3|Iryna Herashchenko|Ukraine|–|o|xo|o|q|
|4|Lucija Zupžic|Croatia|o|o|o|xo|q|
|4|Chanice Porter|Jamaica|–|–|–|xo|q|
|6|Alexandra Plaza|Germany|o|xo|o|xxo|q|
|7|Nikola Parilová|Czech Republic|o|o|o|xxx|q|
|7|Ioánna Koltsídou|Greece|o|o|o|xxx|q|
|9|Leontia Kallenou|Cyprus|–|xo|xo|xxx||
|10|Anna Pau|Italy|xxo|o|xxo|xxx||
|11|Emily Crutcher|Australia|o|o|xxx|||
|11|Keeley O'Hagan|New Zealand|o|o|xxx|||
|13|Dace Dreimane|Latvia|xo|o|xxx|||
|14|Vivien Baglyos|Hungary|o|xo|xxx|||
|15|Thea Lafond|Dominica|xo|xxx||||

Question: how many countries are on the chart?
Answer: 15